Climate change from rising concentrations of greenhouse gas emissions is a critical global public health concern [1]. The healthcare sector is a major contributor to greenhouse emissions with the USA, China and the European Union generating more than half the global healthcare climate emissions annually [2]. Healthcare sector carbon emissions are predominantly created by infrastructure cost, high electricity consumption and pharmaceutical production, with emissions from healthcare-related patient travel a key contributor [3]. In Australia and Europe, up to 80% of the transport sector is comprised of passenger cars and light commercial vehicles, with carbon dioxide (CO₂) the primary emissions byproduct [4, 5].